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Nauticam NA-R50

for Canon EOS R50 with RF-S 18-45mm F4.5-6.3 IS STM Lens

SKU # 17340

$ 1,494.00

Many underwater imaging enthusiasts have been anxious to move beyond the limited performance of their compact camera systems but have been reluctant to give up the compact form factor and simplicity of the genre. Other world travelers have started wondering if there is a way to downsize from their DSLR without giving up too much performance. Nauticam has been listening to this increasing interest and their industry leading engineers have responded with the new NA-R50.

The mission statement was clear: Design the most compact and friendly housing possible for Canon’s awarding-winning and remarkably compact EOS R50 mirrorless APS-C camera. The added challenge was making the housing just as simple and straight forward as Nauticam’s legendary compact camera housings, while making it even easier to achieve superior imaging results. The resulting housing represents an entirely new category for Nauticam while maintaining their famous ergonomics and quality.


Technical Specifications:

Dimensions 238mm x 150mm x 115mm. (W x H x D)
Depth Rating 100m
Weight in air 1.3kg
Weight in water Negative 0.1kg (Including camera, battery and lens)
Port Opening Fixed Flat Port with Bayonet Mount
Lens Support
RF-S 18-45mm F4.5-6.3 IS STM

Introducing Nauticam NA-R50

The Nauticam NA-R50 Underwater Housing for the Canon EOS R50 Camera

Nauticam has always been at the forefront of underwater housing technology. They consistently push the boundaries to create evolutionary, and sometimes revolutionary, products to make imaging creation easier. The NA-R50 Underwater housing is no exception, integrating everything that makes Nauticam's range of housings a favorite among underwater photographers into a small and lightweight package.

The new innovative system is engineered around the Canon RF-S 18-45 F4.5-6.3 IS STM Lens, since this is by far the most versatile and practical RF lens to use on the Canon RF APS-C format underwater. The port is thus integral to housing and requires no additional maintenance, much like Nauticam’s compact camera systems. This lens provides excellent results in the wide to narrow fish portrait FOV range but is easily married to Nauticam’s superb WWL-1 or WWL-C for exceptionally sharp wide angle coverage with full zoom through while still keeping a modest form factor. Nauticam’s Compact Macro Converter water contact optics can be added for a full “do anything and go anywhere” system that easily fits in a traveler's carry on.

Constructed from rugged aluminum, the NA-R50 housing is not only lighter but also more compact than any previous Canon APS-C system. It's the perfect choice for photographers who want to capture stunning images and videos with best-in-the-industry auto focus, while enjoying the convenience of minimal bulk and maintenance. The housing comes ready to submerge as even the zoom gear is included. Add the R50 camera and RFS 18-45 and you are ready to shoot.

Compact and Versatile

The NA-R50 underwater housing dimensions are small enough to hand hold without a tray for ultimate freedom if it is required. Measuring just 238mm (9.3in) wide, 150mm (5.9in) in height and 115mm (4.5) in depth. The NA-R50 has an incredibly small footprint compared to previous APS-C camera housings, making it extremely apealing and travel-friendly.


Nauticam has become justifiably famous for their groundbreaking optical designs for underwater. These optics have been a particular passion of Nauticam founder and Managing Director Edward Lai, and several options offer exceptional performance with the NA-R50 underwater system. The magic of the wet lenses is their tremendous versatility, paired with outstanding in-water performance. Both macro and super wide angle interchangeable optics can be available to the underwater photographer on the same dive. A sampling of recommended options are below.

The WWL-1B is a wide angle conversion lens that is an excellent match with the Canon  RF-S 18-45 F4.5-6.3 IS STM Lens. The WWL-1B provides a crispy 130 degree diagonal field of view with the lens at 18mm and allows for full zoom through to about 60 degrees at 45mm. Focus down-to-the-glass performance is available at all focal lengths for amazing close focus wide angle capability. The all glass WWL-1B lens provides sharper over-all performance then any wide angle lens behind a dome on a typical system.

For those wishing for an even smaller wide angle option without any loss of quality, Nauticam's WWL-C provides a compact all glass optic every bit as sharp as the WWL-1B, but with a zoom range offering 116 degrees at 18mm zooming to about 52 degrees at 45mm. Of course, it also focuses to the front optic.

 Macro aficionados have options as well. Nauticam strongly recommends the lightweight CMC-1 & CMC-2 lenses for ultimate image quality and better auto-focus performance. Maximum magnification is achieved at a focal length of 45mm. The CMC-1 offers more magnification but is a bit more challenging. CMC-2 still offers a hefty 0.6X magnification but is a bit more forgiving.

Flash Triggering

With the NA-R50 underwater housing, flash triggering is accomplished by utilizing the Canon EOS R50’s pop-up flash making adding strobes that employ fiber optic connections a seamless integration. Strobes that provide STTL capability with fiber optics will provide the option of full TTL compatibility with the R50.

Integrated Vacuum Check and Leak Detection System

The Nauticam vacuum check and leak detection electronics are shipped with the NA-R50 as standard equipment. Combined with an accessory M16 vacuum valve (25625) this monitoring system provides constant updates on the water tight and safe-to-dive status of the housing. A simple color coded LED lighting system lets the user know that the vacuum is solid, or that the housing is losing vacuum. Leak detection is built into the same circuit, so if there is water intrusion, an audible and visual indication will occur.

The Nauticam system is temperature compensated, eliminating false alarms caused by a change in outside temperature, or from a camera heating up on an action packed dive.



Support & Downloads

NA-R50 Manual Download PDF.


  • NA-R50 Underwater Housing with integrated flat port (bayonet mount)
  • Spare silicone rubber O-ring for housing (#90131)
  • O-ring remover and lubricant
  • 2x plugs for Optical fiber cable mount 
  • CR-2032 Battery (for moisture alarm and leak detector)
  • Padded housing bag
  • Set of Allen Keys
  • Manual instruction card


  • 25625 M16 Vacuum Valve II (Pushbutton Release)
  • 26216 Universal Optical Fiber Cable
  • 25221 M10 strobe mounting ball for housing
  • 25131 LCD Magnifier attachment rails for NA-RX100III/RX100IV/RX100V/RX100VI/R50
  • 25106 LCD Magnifier with Dioptric Adjustment
  • 90131 Housing o-ring (I.D.=129mm, C.S.=2.5mm)


  • 71206 Easitray II with left handle (with 2pcs 1/4'' screws)
  • 71207 Flexitray II with left handle (with 2pcs 1/4'' screws)
  • 71208 Adjustable right handle II (for Easitray II & Flexitray II)
  • 71209 Flexitray plate II W with left handle (with 2 tripod holes)
  • 36316 Hand strap for Mirrorless IL camera & compact camera housing (Standard)
  • 36323 Long hand strap for Mirrorless IL camera & compact camera housing


  • 25221 M10 strobe mounting ball for housing
  • 25311 Strobe mounting ball for cold shoe
  • 25321 Long strobe mounting ball for cold shoe
  • 25312 Light mounting stem for cold shoe
  • 25322 Long light mounting stem for cold shoe


  • 81301 CMC-1, Max. Magnification: 0.8X, Working Distance: 44-81mm
  • 81302 CMC-2, Max. Magnification: 0.6X, Working Distance: 68-140mm
  • *83214 Bayonet mount Adaptor for SMC/CMC is required for use with CMC-1/2.
  • 83202 WWL-1B, Lens FOV 75-35º, Converted FOV 130-60º, Zoom Range 18-45mm *Most recommended
  • 83203 WWL-C, Lens FOV 75-35º, Converted FOV 116-52º, Zoom Range 18-45mm
  • 86201 MWL-1, Lens FOV 40-35º, Converted FOV 150-130º, Zoom Range 38-45mm

HDMI Output

*Required accessories for HDMI 1.4 Cable System

  • 25033 Standard HDMI bulkhead with M16 thread
  • 25627 M16 Offset Connector with Vacuum Valve II (Pushbutton Release)
  • 25076 HDMI (D-D) cable in 200mm length (for connection from HDMI Bulkhead to Camera) *included in 17923 and 17925 monitor housings.

Monitor Housings

  • 17922 Nauticam Atomos Ninja V Housing for Atomos Ninja V 5'' 4Kp60 4:2:2 10-bit. Recorder/monitor/player (excl. HDMI 2.0 Cable) *25082 HDMI 1.4 Cable for Ninja V Housing in 0.75m length (for connection from Ninja V housing to HDMI Bulkhead) is required

  • 17923 NA-Shinobi-H Housing for Atomos Shinobi 5.2'' 4KHDMI Monitor
  • 17925 NA-503-H Housing for SmallHD 503 UltraBright On-Camera Monitor




Images and videos from Nauticam gear in the wild

EMWL: A New Perspective by Mike Bartick